Many moody teenagers must have rhetorically contemplated killing their parents (and step-parents); one thing someone in that situation doesn't need is a best friend "unable to feel emotions" who may not dissuade but rather offer practical advice. Such is the premise of Cory Finley's film 'Thoroughbreds'. The movie is shot coolly; the worst violence occurs offscreen, the score is mostly silence except for key moments, the world where the action is set is one of wealth and taste, but also one that feels empty and remote from ordinary's people's lives. The protagonists, in spite of their youth, are jaded and know-it-all. The film's weakness, perhaps, is it's ending; it turns out the central character really really does want to kill her stepdad, which is OK as a plot non-twist (this is the ending we might have been expecting the story to twist away from) but doesn't leave the viewer anything to care about.
Review of Thoroughbreds
